Clinical Correlates of Vascular Parkinsonism
Arch Neurol 56:98-102, Winikates,J.&Jancovic,J., 1999
Posteroventral Medial Pallidotomy in Levodopa-Unresponsive Parkinsonism
Arch Neurol 54:1026-1029, Krauss,J.K.,et al, 1997
An 81-Year-Old Man with Imbalance and Memory Impairment
, Golbe,L.I.,et al,